问题
选择题
In order to let more people pay attention to their plan, they _________ some signs on the wall.
A．put on
B．put up
C．set up
D．give up
答案
答案：B
题目分析：句意：为了让更多的人注意他们的计划，他们在墙上挂起了一些牌子。put on 穿上；put up挂起；set up建立；give up 放弃。故选B。